1. Lacking or not requiring a key
   "a keyless lock operated by a series of pushbuttons"

Antonym: keyed

Encyclopedia: Keyless

• spearfish
• spearhead
• spearhead-shaped
• spearman
• spearmint
• spearmint oil
• spearnose bat
• spearpoint
• spearwort
• spec
• special
• special act
• special agent
• Special Air Service
• special assessment
• Special Branch
• special contract
• special court-martial
• special delivery
• special drawing rights
• special education
• special effect
• Special Forces
• special interest
• special jury